John L. Featherstone Plant
Other power plant · Imperial County, California
Nameplate capacity
55 MW
Rank in California
#406
of 1,897 plants
In service since
2012
March 2012
Details
- Primary fuel
- Other
- Technology
- Geothermal
- Operator
- Hudson Ranch Power I LLC
- County
- Imperial County
- Generating units
- 1
- Share of state capacity
- 0.05%
- Rank among other plants in California
- #18 of 152
- EIA plant code
- 57475
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| HRP1 | Geothermal | 55 MW | 50 MW | 2012 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in California
| Luciana | Solar | 56 MW |
| Bottle Rock Power | Other | 55 MW |
| Phillips 66 Rodeo Refinery | Natural gas | 55 MW |
| Wheelabrator Shasta | Other | 55 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 55 MW solar plant and a 55 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All California power plants · What California actually generates